To work around this issue, correct the ASR.sif file so that you can start the ASR restore process on the computer.
This procedure uses an example ASR.sif file. The ASR.sif file that you use will look similar, but the numbers will be different. Put the ASR floppy disk that was created during the ASR backup process in another computer. Open the ASR.sif file in a text editor, such as Notepad. The relevant section of ASR.sif will be similar to the following:
[PARTITIONS.GPT]
1=1,0,2,,"c12a7328-f81f-11d2-ba4b-00a0c93ec93b","0a575940-189b-01c3-92e0-3c772e43ac40",0x1,"EFI system partition",0x06,63,706797,0x1000
2=1,1,0,,"e3c9e316-0b5c-4db8-817d-f92df00215ae","a142f920-1af0-01c3-a1f4-04622fd5ec6d",0x0,"Microsoft reserved partition",0x00,706860,257040,0x0
3=1,2,1,,"ebd0a0a2-b9e5-4433-87c0-68b6b72699c7","b126f760-1af0-01c3-92e0-3c772e43ac40",0x0,"Basic data partition",0x07,963900,20482875,0x1000
Note The lines in this example wrap for readability.
The only significant line is the EFI system partition line:
1=1,0,2,,"c12a7328-f81f-11d2-ba4b-00a0c93ec93b","0a575940-189b-01c3-92e0-3c772e43ac40",0x1,"EFI system partition",0x06,63,706797,0x1000
The EFI system partition is the partition that it is failing to format. You must know the size of this partition. Take the value 706797 (the second-last number on that line) and multiply it by 512. This equals 361,880,064. This means that the example system has an EFI system partition of about 361 MB. Compare this value to the following table:
Drive size
(logical volume) FAT type Sectors Cluster size (decimal) Cluster size (hexadecimal)
------------------------------------------------------------------------------------------
15 MB or less 12-bit 8 4096 0x1000
16 MB - 127 MB 16-bit 4 2048 0x800
128 MB - 255 MB 16-bit 8 4096 0x1000
256 MB - 511 MB 16-bit 16 8192 0x2000
512 MB - 1,023 MB 16-bit 32 16384 0x4000
1,024 MB - 2,048 MB 16-bit 64 32768 0x8000
This means that you must format this example partition with 8-KB clusters (8,192 bytes). However, the file says to format it as 4-KB clusters (4096 bytes) (the last number in the same line, 0x1000, equals 4,096 in decimal form). Therefore, you must change the 0x1000 to 0x2000 (the decimal equivalent of 0x2000 is 8,192).
The new version of the line is:
1=1,0,2,,"c12a7328-f81f-11d2-ba4b-00a0c93ec93b","0a575940-189b-01c3-92e0-3c772e43ac40",0x1,"EFI system partition",0x06,63,706797,0x2000
Save the file, and then start the ASR restore process with the modified ASR floppy disk. The process should now complete successfully.